Sendyne Isolation Monitor For Electric and Hybrid Vehicles SIM100MOD Datasheet V0.4.pdf · Sendyne...
Transcript of Sendyne Isolation Monitor For Electric and Hybrid Vehicles SIM100MOD Datasheet V0.4.pdf · Sendyne...
1Preliminary Rev 0.4 © 2017 Sendyne Corp.
Sendyne SIM100MOD
Sendyne® Sensing Products Family
Sendyne Isolation Monitor For Electric and Hybrid Vehicles
DescriptionThe Sendyne SIM100MOD is the first high voltage
isolation monitoring device for EV/HEVs capable of
operating correctly even when the battery is active,
and experiencing large voltage variations.
The SIM100MOD continuously monitors the isola-
tion resistance between a vehicle’s IT (Isolated Terra)
power system and chassis for deterioration of insu-
lation and potentially dangerous levels of leakage
current. The SIM100MOD detects not only resistive
leakages but also capacitively stored energy that could
be harmful to human operators.
Due to a proprietary, patent-pending advanced algo-
rithm, the module is capable of detecting all sources of
leakage, including multiple, simultaneous symmetri-
cal and asymmetrical faults, as well as resistive paths
between the chassis and points in the battery with the
same potential as the chassis. In the case of an insula-
tion fault, the unit identifies the relative position of
the fault in relation to the battery’s terminals.
Battery-connected VX1 (Vp) and VX2 (Vn) voltage
inputs can measure ±1000 V in reference to Chassis
(0 V). Communications are achieved via an isolated
CAN 2.0B interface (500 kbit/s), with an input voltage
range of 5 V to 53 V, and a wide temperature range of
–40 °C to +105 °C. The module was designed to ISO
6469-3:2011-12 / FMVSS 305.
Sendyne SIM100
CAN interface &power supply
Chassis connections
Vx1
Vx2
Operating Specifications
Parameter Value
Insulation monitoring range 0 to 2.0 MΩ (each of the two measurement lines to chassis)
Power supply +4.8 to +53 V (Variable, accommodating +5 V to +48 V power supplies)
Interface CAN 2.0B isolated, 120 Ω termination resistor
Voltage measurement range 2 Channels: ±1000 V/channel continuous, no signal clipping
Rating Automotive
Power consumption < 400 mW
Module operating temperature range -40 OC to +105 OC (due to connector temperature ratings)
Applications ― Monitoring electric and hybrid vehicle
power systems
2 Preliminary Rev 0.4 © 2017 Sendyne Corp.
Sendyne SIM100MOD
Features
― Measures voltage for each battery terminal to chassis
― Reports battery voltage
― Operates normally while the battery is having large voltage excursions and variations
― Measures and reports modeled leakage resistances per model adapted by the safety standards ISO6469-1,
FMVSS §571.305 and others
― Reports calculated isolation resistance in Ω/V per requirements of the safety standards
― Measures and reports the value of capacitance from each battery terminal to chassis
― Calculates and reports the energy stored by the total capacitance between the battery and chassis
― Continuously monitors connections of the voltage sense lines to the battery terminals; reports inadequate
connections
― Continuously monitors connection of the unit to chassis; reports inadequate connection
― Provides high immunity to common-mode noise that can be present on the battery terminals
― Provides nonvolatile storage for the value of the maximum (design) voltage of the battery (used in calculations
of the isolation resistance and stored energy). If the actual observed battery voltage is higher than the set maxi-
mum voltage, the higher value is used in the calculations of the isolation resistance and stored energy
― Provides nonvolatile storage for calibration of the voltage measurements and other parameters; all reported
measurements have their respective calibration parameters applied automatically
― Provides built-in galvanically isolated and intrinsically leakage-safe excitation source
― A single CAN-interface transaction (packet) provides sufficient information for determination of the safe status
of the system
― Provides measurement of the internal isolated power supply voltage for system diagnostics
― Provides measurement of the module’s temperature for system diagnostics
3Preliminary Rev 0.4 © 2017 Sendyne Corp.
Sendyne SIM100MOD
Technical Specifications
Electrical Specifications
Parameter Min Typ Max Units Conditions/Comments
Power and GeneralElectronics operating
temperature range
-40 +125 °C
Connector temperature
ratings
-40 +105 °C
Supply Voltage 4.8 53 V
Supply Power 400 mW
Start-up time 6 s After application of power and power
supply stabilization to the initial calcula-
tion of insulation resistance
Isolation Resistance MeasurementIsolation resistance
monitoring range
0 2.0 ΜΩ From each side of the battery to chassis.
Isolation monitoring
lines resistance
2.0 MΩ This is the impedance imposed on the IT
system by each of the two battery voltage
monitoring lines and the maximum iso-
lation resistance that can be measured.
Isolation monitoring
uncertainty
±5 % For isolation resistance range of
100 kΩ to 500 kΩ. The total measure-
ment uncertainty includes the contribu-
tion by the noise and operations of the
target system. If externally-induced
noise prevents resolution of the values
with sufficiently-low uncertainty, then
the unit holds the last value until the
noise subsides.
Isolation resistance
calculation period
0.5 s The SIM100MOD calculates isola-
tion resistance value every 500 ms. If
uncertainty is higher than 5 %, the unit
reports the previously calculated value.
Resistance value flagged
as a short
0 5 kΩ Reported isolation resistance value will
be exactly 0 Ω/V
4 Preliminary Rev 0.4 © 2017 Sendyne Corp.
Sendyne SIM100MOD
Electrical Specifications
Parameter Min Typ Max Units Conditions/Comments
Voltage MeasurementNominal full-scale voltage
range
±1000 V Continuous operations, referenced to
Chassis. No signal clipping.
Voltage offset error -1 ±0.2 +1 V VX = 0 V, applies over the full ambient
operating temperature range,
TA = -40 °C to +125 °C
Voltage gain error -1 ±0.1 +1 % Over the full ambient operating tem-
perature range. Calibration and typical
value at room temperature.
Voltage noise error 100 mVRMS 1 Hz reporting rate
Voltage measurement
resolution
1 mV Minimum discernible voltage change;
corresponds to one count of ADC,
voltage report rate of 10 Hz or lower
Permitted battery voltage 15 1000 V For normal operations of the unit; if bat-
tery voltage is below 15 V, an error flag
will be activated and resistance mea-
surements will pause
Capacitance MeasurementCapacitance monitoring
range
0.1 1 >10 µF Capacitance from each terminal of the
battery to chassis
Capacitance monitoring
uncertainty
±15 % 200 nF to 2 µF
Capacitance measurement
resolution
1 nF 200 nF to 2 µF
Temperature Measurement
Absolute temperature
measurement error
-5 ±0.5 +5 °C Built-in temperature sensor
Temperature measurement
resolution
10 m°C Practical temperature measurement
granularity
Noise Immunity of MeasurementsCommon mode voltage on
the battery terminals
20 VPK-PK No observable effect on isolation resis-
tance value; measured with square and
triangular wave test signals at 1 kHz,
10 kHz and 30 kHz
5Preliminary Rev 0.4 © 2017 Sendyne Corp.
Sendyne SIM100MOD
CAN and Power header & mating connectors Voltage sensing header & mating connectors
The SIM100MOD uses Molex connectors, part numbers: 347920040 and 39299029.
For more details please see the Molex datasheets:
www.molex.com/pdm_docs/sd/347920040_sd.pdf and www.molex.com/pdm_docs/sd/039299029_sd.pdf
Electrical Specifications
Parameter Min Typ Max Units Conditions/Comments
Differential mode voltage on
the battery terminals (battery
voltage variations)
100 VPK-PK No observable effect on isolation resis-
tance value; tested with a battery-voltage
driving profile that has multiple instan-
taneous voltage changes up to ±100 V
and overall slow battery voltage fluctua-
tion from 330 V to 125 V and back to
330 V
IsolationTest voltage 3 kVDC CAN interface to chassis, 1 min. dura-
tion
ESD tolerance 25 kV Air discharge
Communications
Interface Spec Speed TerminationCAN 2.0B 500 kbit/s 120 Ω termination resistor
Connectors
Interface Manufacturer Positions Part number DescriptionCAN & power
on board
Molex 4 347920040 P1: 4 pos. header, shrouded connector
(2.00 mm), through hole tin
Can & power
mating con.
Molex 4 347910040 Use appropriate crimp contacts
(available for AWG 22, 24 and 26)
Voltage sensing
on board
Molex 2 39299029 J1, J3, J4: MINIFIT JR HDR 02P 94V-0
30AU
Voltage sensing
mating con.
Molex 2 39013028 MINIFIT JR RCPT DR SIDETABS 2
CKT 94V-0. Crimp contacts available for
AWG 18 to 28
6 Preliminary Rev 0.4 © 2017 Sendyne Corp.
Sendyne SIM100MOD
Connectors
Pin Number Signal Name Comments
Connector J11 CH1 Chassis connection 1. One of two independent connections to Chassis.
2 CH2 Chassis connection 2. One of two independent connections to Chassis.
Note: Signals CH1 and CH2 should have independent connections to Chassis. The SIM100 module continuously
monitors continuity between these two signals. This information is used for examination of the assured connection of
the SIM100 module to Chassis. Absence of solid Chassis connections is reported as a Fault; at that time the results of
the Isolation Measurements are not valid.
Connector J31 VX1 To be connected to positive terminal of the Battery. The two pins in this
connector are shorted on the PCB; either one or both (redundant) pins can
be used for the electrical connection.
2 VX1 Same as above.
Connector J41 VX2 To be connected to negative terminal of the Battery. The two pins in this
connector are shorted on the PCB; either one or both (redundant) pins can
be used for the electrical connection.
2 VX2 Same as above.
Connector P11 VCC Positive power supply, can be any voltage within +4.8 V to +53 V.
2 CAN_L One of two CAN communications lines. Termination resistor of 120 Ω is
installed between these two lines on the SIM100 module.
3 CAN_H One of two CAN communications lines. Termination resistor of 120 Ω is
installed between these two lines on the SIM100 module.
4 GND Common / GND connection, negative return for the power supply.
Note: Signal names for pins of connector P1 are labeled on the PCB. Signal GND is galvanically isolated from Chassis.
7Preliminary Rev 0.4 © 2017 Sendyne Corp.
Sendyne SIM100MOD
To / From Other Circuits: Contactors, Loads, Charger, etc.
HV Multi-cell Battery
Chassis Chassis
To / From Host
CH1 CH2
Vx2 Vx1
SIM100MOD
J1 P1
CAN & Power
VnVp
Cp Cn
Rp Rn
Rp and Rn are modeled isolation (leakage) resistorsCp and Cn are “Y” and/or parasitic capacitors
J4 J3
Typical Applications
For information on the Host controller interactions with the SIM100 module, and readout of the results of the module’s measurements, please refer to the separate “SIM100MOD CAN Protocol” document.
8 Preliminary Rev 0.4 © 2017 Sendyne Corp.
Sendyne SIM100MOD
SIM100MOD general dimensions [inches]
A
A
2 1.72
4
3.1
Ø0.
12 x
4
1
0.2
0.24
0.63
0.3
0.72
J1 (CH
1, C
H2)
J3 (VX
1)J4
(VX
2)
P1(C
AN
& P
WR
)
Max
ium
um e
nvel
ope
of
com
pone
nts
on P
CB
Mechanicals
9Preliminary Rev 0.4 © 2017 Sendyne Corp.
Sendyne SIM100MOD
Ordering Information
Part Number Description
SIM100CA-MOD SIM100MOD module
SIM100KIT SIM100MOD module, CAN to USB protocol converter
for PC communication, cables, and Windows software
10 Preliminary Rev 0.4 © 2017 Sendyne Corp.
Sendyne SIM100MOD
Revision History
Revision Table
Revision Number Date Comments
0.4 04/26/2017 Minor corrections
0.3 03/22/2017 Minor corrections
0.2 03/06/2017 Updated features and electrical specs
0.1 02/28/2017 Preliminary; initial release
11Preliminary Rev 0.4 © 2017 Sendyne Corp.
Sendyne SIM100MOD
Information contained in this publication regarding
device applications and the like, is provided only for
your convenience and may be superseded by updates.
It is your responsibility to ensure that your application
meets with your specifications.
SENDYNE MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER
EXPRESSED OR IMPLIED, WRITTEN OR ORAL,
STATUTORY OR OTHERWISE, RELATED TO THE
INFORMATION, INCLUDING BUT NOT LIMITED
TO ITS CONDITION, QUALITY, PERFORMANCE,
MERCHANTABILITY OR FITNESS FOR PURPOSE.
Sendyne disclaims all liability arising from this in-
formation and its use. Use of Sendyne devices in life
support and/or safety applications is entirely at the
buyer’s risk, and the buyer agrees to defend, indemni-
fy and hold harmless Sendyne from any and all dam-
ages, claims, suits, or expenses resulting from such
use. No licenses are conveyed, implicitly or otherwise,
under any Sendyne intellectual property rights.
PatentsUS Pat. 8,373,408
US Pat. 8,350,552
US Pat. 8,289,030
Other patents pending
TrademarksThe Sendyne name and logo are registered trademarks
of Sendyne Corp.
All other trademarks mentioned herein are properties
of their respective owners.
© 2017 Sendyne Corp.
All Rights Reserved.
1234567890 1234567890